Loom-shuttle.



A. E. RHOADES.

LOOM SHUTTLE.

APPLICATION FILED Nov. 9. I9Is.

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ALONZO E. RHOADES, 0F HOPEDALE, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- IMIENTS,I TO DRAPER CORPORATION, 0F 'HOPEDALEL MASSACHUSETTS, A CORPORA- non or MAINE.

LOOM-SHUTTLE.

Specification of Letters Patent.

Patented Feb. `13, 1917.

Application led November 9, 1916. Serial N o. 130,453.

To all whom t may concern.'

Be it known that I, ALONZO E. RnoAnEs, a citizen of the United States, residing at Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Loom-Shuttles, of which the following description, in connection with the' accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to improvements in loom shuttles for automatic filling replenishing looms of the type disclosed in prior Patents Nos. 906,748 granted December 15, 1908, 1,092,959 granted April 14, 1914 and 1,171,766 granted February 15, 1916. Shuttles of this type are particularly adapted to receive bobbins or other filling carriers having longitudinal slots in their barrels adapted to receive the feeler when uncovered by lthe unwinding of the filling and thereby to initiate the action of the replenishing mechanism. Consequently the filling carriers must in this type of shuttle be positioned in the shuttle in proper axial position in order that the longitudinal slot may be in proper position. The butts of the filling .carriers are accordingly provided with positioning faces and the shuttle is provided with suitable means such as a pair of guiding and positioning members to engage the said positioning faces of the butt of the filling carrier and guide the filling carrier inproper axial position into engagement with the usual shuttle jaws.

It not infrequently happens that during the operation of replenishment the fresh .filling carrier is forced into the shuttle without sufficiently engaging the guiding and positioning members to secure its proper axial position so that it is occasionally caught and held by the shuttle jaws with the positioning faces out of engagement with the guiding and positioning members. When this takes place the filling carrier is necessarily insecurely held by the bobbin means on the shuttle acting to secure the stopping of the loom whenever the guiding and positioning means fail to function with the positioning faces of the filling carrier butt and the filling carrier is consequently improperly and insecurely engaged by the shuttle jaws. v v

The object is more specifically secured by providing the shuttle opposite the tip end of the filling carrier with a pair of resilient fingers acting to engage the tip of the filling carrier if and when it is improperly positioned thus pinching the filling when it starts to unwind from the tip and causing it to breakpso that as the result of breakage the loom will be stopped -by the mechanisms usually provided for stopping the loom when the filling breaks. These and other objects of the invention will appear more fully from the accompanying description and drawings and will be particularly pointed out in the claims. i.

The drawings represent a shuttle and bobbin of the general type disclosed in the aforesaid patents with a preferred form of the present invention applied thereto.

In the drawings Figure l is a top plan view of a shuttle and bobbin embodying the invention with the bobbin shown in improper axial position and `insecurely held by the shuttle jaws; l

Fig. 2 is a view in cross section taken on the line 2 2 of Fig. l.

In View of the full disclosure of the patents abovc referred to the construction of the shuttle illustrated has become familiar to those skilled in the art. The shuttle body 1 is provided with the usual filling carrier butt gripping means such as heavy spring jaws 2 provided on their inner faces with the three ring engaging grooves 3. Within the jaws and properly secured to the shuttlc body is the pair of guiding and positioning members -l which project upwardly and flare outwardly and extend well above the plane of the top of the shuttle jaws.

At its opposite end the shuttleis provided with any suitable or construction 5 by which the filling as it is drawn off the filling carrier is automatically threaded through the eye of the shuttle.

The filling carrier is shown as a bobbin provided with a butt 6 and barrel 7, vthe ioo 'usual self-threading latter having the longitudinal feeling slot 8. The butt of the bobbin is provided with the rings 9 which" are adapted to coperate with the grooves 3 in the shuttle jaws to hold the bobbin in place. The butt is also at its end provided witha pair of side positioned faces 10 which function with .the guiding and positioning members 4 as the bobbin is transferred into the shuttle so as to guide the bobbin into engagement with vthe jaws in proper axial position. When replenishment takes place and a fresh bobbin is transferred into the shuttle under normal conditions the positioning faces 10 contacting with the guiding and positioning members 4 guide the bobbin'into position so that the three rings 9 engage respectively the three grooves 3 of the shuttle jaws and the bobbin is seated in place in the shuttle with the positioning faces remaining in contact with the guiding and positioning members.

It not infrequently happens however that during the operation of transfer the bobbin fails to function properly with the guiding and positioning members 4 or the butt fails to engage the guiding and positioning members 4 at all. In either case the bobbin if it is held in the shuttle is held insecurely as by the ring 6 nearest the butt end enaging the grooves 3 nearest vthe free ends of the shuttle jaws, as illustrated in Fig.- l. Under these conditions the bobbin not -having been guided by the guiding and positioning members, will-be in improper axial position and the feeler slot 8 will not be in position to coperate with the feelel'. Furthermore, as soon as the shuttle starts its movement the usual shock and jar of the parts will cause the tip of the bobbin to project beyond the face of they shuttle and a smash will at once ensue. 1 In the embodilnent of this invention in the preferred form a pair of oppositely disposed resilient fingers 11 are provided. These are shown as metal plates riveted at 12 tothe inner walls of the vbobbin chamber of the shuttle and projecting forwardly with their free ends yieldingly in engagement with the tip of the bobbin. The rivets l2 are located in countersunk openings in the shuttle wall so that the rivets are below the outer Walls of the shuttle. The resilient fingers thus disclosed constitute an example of means acting if and when the bobbin butt is insecurely caught by the shuttle jaws to engage and pinch the filling when drawn off from the bobbin through the shuttle eye and any suitable means is to be considered within the broad scope of the invention. n

Whenever the bobbin in its transfer into the shuttle fails to function with or to be engaged by the guiding and positioning means but 1s caught and held by the shuttle jaws then the tip of the bobbin will come into engagement with the resilient fingers and the filling as it is drawn off will be pinched by the fingers.

The pinching of the filling is of such a character as to cause the filling to break immediately it is pinched and thereupon the loom stops through the operation of the usual instrumentalities provided for stopping the loom upon the failure of the filling.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A loom shuttle for filling carriers having butts provided with rings and with parallel positioning faces comprising a pair of grooved spring jaws adapted to engage said bobbin rings, a pair of guiding and positioning members to engage the said positioning faces of the filling carrier butt and guide the filling carrier in proper axial posltion into engagement with said jaws, and means acting if and when the filling carrier butt engages said jaws without being guided and positioned by said guiding and positioning members to engage and pinch the filling when drawn off the tip and thereby cause the filling to break.

2. A loom shuttle for filling carriers having butts provided with rings and with parallel positioning faces comprising a pair of grooved spring jaws adapted to engage said bobbin rings, a pair of guiding and positioning members to engage the said positioning faces of the filling carrier butt and guide the filling carrier in -proper axial posltion into engagement with said jaws, a resilient finger mounted on the shuttle and acting to engage the filling carrier tip if and when the filling carrier butt engages said jaws without being guided and positioned by said guiding and positioning members and thus to pinch the filling against the bobbin as it is drawn off the tip and thereby cause the filling to break.

3. A loom shuttle for filling carriers having butts provided with rings and with parallel positioning faces comprising a pair of grooved spring jaws adapted to engage said bobbin rings, a pair of guiding and positioning members to engage positioning faces of the filling carrier butt and guide the filling carrier in proper axial position into engagement with said jaws, and a pair of oppositely disposed resilient fingers mounted on the shuttle and acting to engage the tip of the filling carrier if and when the filling carrier butt engages said jaws without being guided and positioned by said guiding and positioning members and to drawn off the tip and thereby cause the filling to break.

4. A loom shuttle comprising filling earthe said pinch the filling when Y rier buttv gripping means, l'tioning means to guide t e'filhng carrier 1 butt into the said gripping means. and to Y finger mountedonthe shuttle and-acting 'if and whenthe ilhng ,l Y 1421MB. .7

rier butt gripping and ,means acting v .carrier butt is insecurely caught by' the jgrippin means to engage Iandrpinch the 511mg w en'drawn off thertipand thereby-'cause the lling to tiomng butt into the-said position the bobbin axia ingA upon Ithe vfailure of the guiding and positioning means to function to engage 'and pinch the filling when `drawn off the y tip and j thereby cause. the iilling to break.v

6; A -loom shuttle comprising llm caridlng an posiposition -th'ebobbin axlally, andA a resilient upon the failure of;.,the positioning means function to enga llling a'rriertip andtopinch the g against the filling carrier tip as it is vdrawn of and thereby cause the filling to break. I

"7'.A loom shuttle comprising lling car-v rier butt gripping means, 'idmgand posi- 'tioningmeans to guide t: filling carrier butt into the said gripping means and to position the `bobbin axially, .and a pair of oppositely disposed resilient fingers mounted in the shuttle and enfglaging at theirf free ends the tip of the ling carrier if and Whenthe Jling carrier butt is caught bytheflbuttgripping meansv without vbeing properly.;` positioned by the. guiding and positioning means, the said fingers act-- ing'to pinch the filling against the tip of vthe lli'ng carrier and cause it to break as it-.is drawn oi. v Intestimony whereof, I have signed my this ,sp'eciication name to ALONZO E. RHOADES. 

